Just looking at the early reactions over in the Delta subforum. It's interesting that so far there are no complaints about retro pay, a subject that sucked up a lot of oxygen before the TA was released.

If I'm reading the language right it's:

4% for 2020, 4% for 2021, 14% for 2022, and 18% for January 1 to March 1, 2023
payable to retirees or deceased pilots' estates
entire 2023 retro payment is eligible for profit sharing
not eligible for 401k contribution except for the portion that's paid for January to March 2023